<template>
  <div>
    <el-form ref="deptForm" label-width="120px" :model="form" :rules="rules">
      <el-form-item label="部门名称" prop="name">
        <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item label="部门编码" prop="code">
        <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item label="部门负责人" prop="manager">
        <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
          <el-option v-for="item in list" :key="item.id" :value="item.username" :label="item.username" />
        </el-select>
      </el-form-item>
      <el-form-item label="部门介绍" prop="introduce">
        <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
        <el-button size="small" @click="hCancel">取消</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import { getEmployeesSimple, addDepartments, getDepartmentsDetail, editDepartments } from '@/api/departments'
export default {
  props: {
    originList: {
      type: Array,
      required: true
    },
    id: {
      type: String,
      required: true
    },
    isEdit: {
      type: Boolean,
      required: true
    }
  },
  data() {
    // 自定义校验规则函数
    const existCodeValid = (rule, value, callback) => {
      // 验证输入的编码value在部门中是否存在
      let existCodeList = this.originList.map(item => item.code)
      // 判断是否是编辑状态
      if (this.isEdit) {
        existCodeList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
      }
      console.log(existCodeList, 'existCodeList')
      if (existCodeList.includes(value)) {
        // 存在,校验失败
        callback(new Error(`部门编码:${value}已存在`))
      } else {
        // 不存在,放行
        callback()
      }
    }
    // 自定义校验函数规则
    const existNameValid = (rule, value, callback) => {
      // 验证输入的部门名称value在同级中不重复
      let existNameList = this.originList.filter(item => item.pid !== this.id).map(item => item.name)
      // 判断端是否编辑
      if (this.isEdit) {
        const pid = this.originList.find(item => item.id === this.id).pid // 通过this.id获取当前对象的pid
        // console.log(pid, 'pid')
        const brothers = this.originList.filter(item => item.pid === pid) // 所有兄弟,包括自己
        existNameList = brothers.filter(item => item.id !== this.id).map(item => item.name) // 排除自己
      }
      console.log(existNameList, 'existNameList')
      if (existNameList.includes(value)) {
      // 存在,校验失败
        callback(new Error(`部门名称:${value}已存在`))
      } else {
      // 不存在,放行
        callback()
      }
    }
    return {
      form: {
        name: '',
        code: '',
        manager: '',
        introduce: ''
      },
      // 校验对象
      rules: {
        name: [
          { required: true, message: '请输入部门名称', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入长度是1-50的部门名称', trigger: 'blur' },
          { validator: existNameValid, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '请输入部门编码', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入长度是1-50的部门编码', trigger: 'blur' },
          { validator: existCodeValid, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '请选择部门负责人', trigger: ['blur', 'change'] }
        ],
        introduce: [
          { required: true, message: '请输入部门的介绍', trigger: 'blur' },
          { min: 1, max: 300, message: '请输入长度是1-300的部门介绍', trigger: 'blur' }
        ]
      },
      list: [] // 保存的是部门负责人
    }
  },
  created() {
    this.loadEmployeesSimple()
    // 判断 是编辑部门才需要数据回填
    if (this.isEdit) {
      this.loadDepartmentsDetail()
    }
  },
  methods: {
    // 清空表单
    resetForm() {
      this.$refs.deptForm.resetFields()
    },
    // 加载部门详情
    async loadDepartmentsDetail() {
      try {
        const res = await getDepartmentsDetail(this.id)
        console.log(res, 'getDepartmentsDetail')
        // 获取到的数据添加到表单
        this.form = res.data.data
      } catch (error) {
        console.log(error)
      }
    },
    // 定义函数 发送请求
    async loadEmployeesSimple() {
      try {
        const res = await getEmployeesSimple()
        // console.log(res, 'getEmployeesSimple')
        this.list = res.data.data
      } catch (error) {
        console.log(error)
      }
    },
    // 实现新增
    async doAdd() {
      try {
        const res = await addDepartments({ ...this.form, pid: this.id })
        console.log(res, 'addDepartments')
        // 子传父 关闭弹层 重新刷新页面
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    // 实现编辑部门功能
    async doEdit() {
      try {
        const res = await editDepartments(this.form)
        console.log(res, 'editDepartments')
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    // 兜底校验
    hSubmit() {
      this.$refs.deptForm.validate((valid) => {
        // 校验失败
        if (!valid) return
        // 校验通过
        this.isEdit ? this.doEdit() : this.doAdd()
      })
    },
    // 关闭弹层 ---->弹层在父组件
    hCancel() {
      this.$emit('close')
    }
  }
}
</script>

<style>

</style>
